Sprayer



Patented Aug. 20,1940

UNITED STATES SPRAYER Ivar Jepson, Chicago, Ill., assigner toChicagoFlexible Shaft Company, Chicago, Ill., a corporation of IllinoisApplication June 13, 1938, Serial No. 213,376

4 Claims.

ing the same, and for developing suitable Dressure within the sprayer. l

Another object of the invention is the provision of a device of thecharacter described having improved means for preventing overllng of thecontainer, and for sealing the opening through which iilling isaccomplished.

I have also aimed to provide a novel arrangement and combinationofelements wherein the valve container functions as a handle in thecombination, and having a novel functional cooperation between the pumphandle and the closure member.

Other objects and advantages will become apparent from the 'followingdescription and the accompanying drawing, in which- Figure 1 is a sideview of a sprayer embodying my invention;

Fig. 2 is avertical section therethrough taken on the line 2-2 of Figure1, and

Fig. 3 is a View on the line 3 3 of Figure 1.

The form of the invention herein shown is in-A tended primarily for handuse, in vthis instance the spraying of clothes for dampening prior tothe ironing thereof, but is, of course, suitable for numerous otherspraying operations of similar nature. Referring to the drawing, thepresent embodiment has a tank or container 4, in this instance,cylindrical in shape and tapering inward somewhat as shown at 5 to theneck of the container, which is axially disposed at the top thereof.'Ihe lower end of the container is closed by means of a bottom 6 securedagainst the walls by a flange 1 vcrimped over the periphery 8 of thebottom member, and where necessary, soldered, brazed or welded intoposition to form a duid-tight joint. Secured in the neck of the end asshown at I3 to provide an annular flange or shoulder. The portion I2 hasformed thereon screw threads, the threads in this instance being pressedinto the metal, but itwill be ob- 'vious that these can be formed in anywell known A'opening to the container through the tube 9,

which opening serves as a filling opening therefor. The cap has a boreI6 forming the sleeve I5 and a counterbore il forming an intermediateshoulder I8 upon which is positioned an an- 15 nular gasket I9 ofsuitable material, in this instance of rubber. The inner wall of thecounter` bore I1 is threaded as shown at 2! for the reception of a pumpcylinder 22, the end of the.I pump cylinder being threaded forengagement 20 at 2l. The cylinder projects out of the cap in concentricrelationship with the sleeve portion I5 as appears from Fig. 2, and thegasket I9 is of such width as to be confined between the cylinder andthesleeve portion I5. As a result of this 25 confinement, it will beobserved that the gasket is prevented` from lateral distortion orcreepage when the cap is screwed down so that the gasket presses againstthe ange I3 to seal the junction between the cap and the container. Thecap also 30 has a second counterbore 23 axially positioned with respectto the bore IE and counterbore I1 for the reception of a stem -24 ofanair pump presently to be described more fully. The upper end of thestem 24 is in this instance em- 35 bedded in a handle 25 of somewhatT-shaped structure having laterallydisposed arms 26 and 21, the handleserving to reciprocate the stem 24 within the tube 22. The upper surfaceof the cap I4 has two radially disposed and circum- 40 ferentiallyspaced lugs28 and 25 serving -as abut;

ments for similar lugs 3| and 32 disposed on the bottom surface of thehandle 25. When the handle is in its lowermost position as shown in thefrom the lugs 28 and 29 so as to come into contact with the top of thecap intermediate the lugs 28 and 29. In this position of the parts, whenthe lhandle 25 is rotated, the lugs come into the position shown in Fig.3, and continued rotation of the handle brings about rotation of thecap. 'I'his arrangement facilitates the tightening of the cap onto thecontainer becausel of the greater leverage obtained in this way, andlikewise fa- Y cilitates the removal-of the cap and permits the 55.

flange I3 to be pressed against the gasket I9 under a considerablesealing pressure with very little force on the handle 25. Contrariwise,very little force is required to break the seal.

VThe lower end of the cylinder 22 extends into the container and whenthe cap I4 is seated, extends to a point in relatively close proximityto the bottom of the container as shown in Fig. 2. The lower end of thetube has a transverse end piece 33 secured therein and provided with acentral opening 34 for the passage of air from the interior of thecylinder out into the container. A screw 35 having a large head 36passes through the opening 34 and carries a washer 31 having securedthereto a disk of gasket material 38 of such size as to cover theopening 34. The opposite end of the screw 35 has a nut 39 securedthereto and supports a spider 4I which bears against the inner side ofthe element 33, the spider having spring legs which normally urges thegasket into closed position over the opening 34 but permits opening ofthe valve thus formed when more than a minimum pressure is devel- I opedwithin the cylinder.

'I'he -lower end of the stem 24 has a nut 42 threaded thereon abovewhich is a portion 43 upon which a piston 44 has sliding movement, theend 45 of the piston abutting against the nut 42 to limit its movementin one direction and against a disk 46 of gasket material positioned ona metallic backing member 41 secured in turn to the stem at 48, to limitits movement in the opposite direction. The piston 44 has a bodyportion49 provided with a central opening 5I through which the stemportion 43 passes, the opening' being such as to provide a, loose nt andto permit the passage of air therethrough when the piston is drawnupward under the action of the stem. The lower end of the piston has aslot 52 which permits movement of the air past the nut 42. A pistonleather 53 or similar packing is secured to the upper side of the pistonby a washer 54, seated against a hub 55 on the upper side of the body,the upper endof the hub being spun over as shown at 56 to secure thelwasher and leather in place and to provide an annular shoulder forabutment against the gasket 46 to facilitate the sealing action betweenthese parts. 'I'he piston body has an annular recess 51 within which isprovided an expanding ring 58 adapted to exert outward pressure againstthe leather 53 and urge the skirt of the leather against the innersurface of the cylinder 22. It will be seen that as the vstem 24 isreciprocated by means ofthe handlev 25, the nut l42 comes againsttherpiston at the start of the upward movement` opening the space betweenthe piston and the gasket 46. Continued movement of the stem movesthe'piston upward to the top of the end of the stroke.

cylinder or until a spring 59 abuts against the inner surface of the capI4 to cushion the upper During this movement air passes from theupperside of the piston downward `along the stem portion 43 through theslot 52 into the lower end of the cylinder, the valve at the lower endof the cylinder remaining closed. When the stem 24 starts downward, thestem moves with respect to the piston until the. packing 46 abutsagainst the piston, preventing the passage of air in an'upwardlydirection. Upon continued downward movement of the pis- .ton air iscompressed in the lower end of the cylinder and is forced out into thecontainer through the passage 34 against the spring action or the spideru. lnl uns manner the pressure in extent.

the container may be built up to the required Normally the containerwill contain a substantial amount of Water or other liquid, as willpresently be described, the liquid being introduced through the tube II.

A discharge valve, indicated generally`by the numeral 6I, is positionedon the side of the container adjacent the top thereof, as shown in thedrawing, and includes a valve body 62 positioned in an opening 63 in theside of the container, the valve body being soldered, welded, brazed, orthe like, or attached in any other manner to provide a iiuid-tightconnection. In this instance, the metal of the container is formedinwardly adjacent the opening as shown at 64 for a purpose which willpresently appear. The body 62 has a bore 65 and a counterbore 66providing an intermediate shoulder 61 within which is positioned anannular. recess 68 forming a port with which communicates a pipe 69carried in the body member and projecting to a point adjacent the bottomof the container, the pipe serving to supply liquid to the port 68. Thebore 65 is internally threaded as shown at 1I for the reception of anexternally threaded nut 12 which bears against a sleeve 13 positioned inthe bore, the sleeve having a tab 14 projecting laterally outward forreception in a slot 15 in the threaded portion of the body member, thetab and slot serving to prevent rotation of the sleeve. The sleeve 13and nut 12 have a bore 16 and a counterbore 11 for the reception of anozzle member 18, the nozzle member having an annular flange 19 bearingin the bore 16 and a tubular portion bearing in the counterbore 11 tosupport and guide the nozzle member in longitudinal movement. A spring8l is positioned in the bore 16 and acts against the ange 19 to urge thenozzle member inwardly, that is, toward the right facing Fig. 2. Thenozzle member has a central bore 82 for the passage of liquidtherethrough and is externally threaded as shown at 83 for the receptionthereon of a nozzle tip 84, the nozend as shown at 89 to secure againstthe end of the nozzle member 18 a rubber or similar diaphragm 9|. Thisdiaphragm is of substantially the same area as the'bore 65 and issecured at its periphery against the lshoulder 61 by means of the sleeve13, the sleeve pressing thereagainst With considerable force andpreventing movelment of the periphery of the diaphragm. A handle 92 hasan opening 93 for loose reception on the outer surface of the bodymember 61. 'Ihe handle has a tab 94 for reception in the slot 15 toprevent rotation of the handle about the axis of the nozzle. 'I'hehandle also has a projection 95 pressed therein for abutment against theshoulder 96 in the container formed by the recess 64 which serves as afulcrurn about which the lever may be rotated by movement of the remoteend 91 of the lever. The lever likewise has projections 98 formedadjacent the opening 93 for abutment against the ange 85 of the nozzletip. It will be seen that when the end container the projections 9Bpressing against the ilange 85 will urgethe nozzle tip and the nozzlemember 18 tothe left facing Fig. 2, thereby establishing communicationbetween the port '68 and the bore 82 by way of the bore 65 and thecounterbore 66 in the body member so that the liquid may pass from theport 68 into the bore 82 and out through the nozzle tip. When the handleis released, the spring urges the nozzle member to the closed positionshown in Fig. 2. The flange 19 has spaced slots 98 which ride alongprojections 99 formed in the sleeve 13 whereby to prevent rotation ofthe nozzle member with respect to the body. The annular flange 85 of thenozzle tip is knurled for convenience in removing the tip for cleaningof the nozzle. It will also be seen that the flange serves to cover theremainder of the valve and nozzle mechanism but to permit access to the'entire mechanism upon its removal. y f

Attention is directed to the numerous advantages and structural featuresof the invention. It will beseen that the cap is constructed to carrythe pump in such manner that the gasket I9 is confined for electiveoperation and that the' handle of the pump functions not only forreciprocation of the pump rod, but also functions in the removal oi thecap from the container. Likewise, the tube 9 serves not only asalllingspout, but also forms with the side of thev container an air trap in thetop of the container to prevent the sprayer from being completely filledand to provide a compressible quantity vof air within the container.Attention is also directed to the fact that the container is ',of suchcircumference as to be conveniently encircled by the hand of theoperator to an extent suilicient for` ease in manipulation of thecontainer, as a result of which the necessity for a handle is avoidedtogether with the Various operating instrumentalities from the handle tothe valve. This structure also permits of combining the nozzle and thevalve in a unitary assembly since the valve is operated from the side ofthe container directly adjacent to the nozzle.

Another feature of the invention is the unitary Valve and nozzlestructure whereby a portion of the valve is caused to function as aportion Yof the nozzle, .or vice versa, and the arrangement is such thata very simple and eiective means may be employed for actuating thevalve.

.I claim:

1. The combination in a sprayer of a container for liquid having a topopening, a sleeve secured intermediate its ends in said opening toproject upward from said container and downward into said container, thedownwardly extending portion forming an air trap in the top of thecontainer when the latter is lled with liquid through the sleeve, aclosure for said container comprising a cap having a flange arranged tobe received over the end of said upwardly extending portion, a pumpcylinder within the flange in spaced relation thereto, the upper end lofthe Asleeve extending inwardly into close relation with the cylinder,means for` drawing the lcap against the inwardly extendingend of thesleeveto seal the container, and 'a gasket between the iiange and thecylinder for'engagement with said upper end of the sleeve when the capis drawn down whereby the flange and cylinder prevent lateral distortionof the gasket, and means in said,cylin der for injecting air into thecontainer.

2. The combination in a sprayer of a container for liquid having a topopening, a sleeve secured intermediate its'ends in said opening toproject upwardly from said container and downwardly into said container,the sleeve serving as a com.

the top of the container when the latter is lled with liquid, a closuref or said container comprising a cap having a ange threaded over the endof said upwardly `extending portion and tightened thereon by rotation ofthe cap, said cap having a cylindrical threaded portion and a centralopening therethrough, a pump 'cylinder threaded into said threadedAportion within the ange in spaced relation thereto, a gasket connedbetween the Iflange and the cylinder for engagement with the end of thetube when the cap is tightened thereon, a pump piston in said cylinderfor injecting air into the container, the piston having a reciprocablerod extending loosely through said cap opening, a handle positioned onthe rod for reciprocating the same, and means on the cap and onthehandle engageable in one position of the handle for rotating thecap'in response to rotatior of the handle to tighten and loosen the cap.3. The combination in a sprayer of a slender body, Va relatively smallupstanding neck at the upper end of the body,A the body taperinginwardly at lits upper end tov said neck, a one-piece cap covering saidneck and having arib at its upper end,Y a threaded bore for reception ofthe neck, a threaded counterbore, and a shoulder be,\

tween. the bore and the counterbore, a pump cylinder threaded into thecounterbore and depend-y A ing from the capinto the body, a gasketseated against said shoulder and coni-ined between the bore and thecylinder to seal the neck, the neck being inturned substantially to thecylinder to provide a atsurface for contact with the gasket, a plungerrod extending through the center of the cap, and a handle on the outerend of the plunger havingl a rib for engaging the rib of the-V mentmeans providing a fulcrum for the rotation of the lever to openthe valvewhen thc- Vlever i's squeezed toward the body. y p t IVAR JEPSON.

